Merge pull request #231 from pandoc/127_lua_filters

FIX #127 : Add Lua filters

alpine/Dockerfile

@@ -161,7 +161,7 @@ FROM alpine-latex as alpine-extra
 COPY common/extra/packages.txt /root/extra_packages.txt
 COPY common/extra/requirements.txt /root/extra_requirements.txt
 
-# The option `--break-system-packages` sounds bad but this is not 
+# The option `--break-system-packages` sounds bad but this is not
 # really a problem here because we are not using Python apk packages
 # anyway.
 RUN  apk --no-cache add py-pip \
@@ -180,3 +180,10 @@ RUN mkdir -p ${TEMPLATES_DIR} && \
 ARG EISVOGEL_REPO=https://raw.githubusercontent.com/Wandmalfarbe/pandoc-latex-template
 ARG EISVOGEL_VERSION=v2.4.0
 RUN wget ${EISVOGEL_REPO}/${EISVOGEL_VERSION}/eisvogel.tex -O ${TEMPLATES_DIR}/eisvogel.latex
+
+# Lua filters
+ARG LUA_FILTERS_REPO=https://github.com/pandoc/lua-filters/releases/download
+ARG LUA_FILTERS_VERSION=v2021-11-05
+RUN wget ${LUA_FILTERS_REPO}/${LUA_FILTERS_VERSION}/lua-filters.tar.gz \
+    && tar xzf lua-filters.tar.gz --strip-components=1 --one-top-level=/.pandoc \
+    && rm -f lua-filters.tar.gz

docs/extra.md

@@ -6,13 +6,13 @@ and a curated selection of components:
 
 * Templates: [Eisvogel][]
 * Beamer Themes: [beamer-metropolis][]
-* Pandoc filters: [pandoc-latex-environment][]
+* Pandoc filters: [pandoc-latex-environment][] + [Lua filters][]
 * Open Source Fonts: Font Awesome, Source Code Pro, Source Sans Pro
 
-
 [Eisvogel]: https://github.com/Wandmalfarbe/pandoc-latex-template
 [beamer-metropolis]: https://github.com/matze/mtheme
 [pandoc-latex-environment]: https://github.com/chdemko/pandoc-latex-environment
+[Lua filters]: https://github.com/pandoc/lua-filters
 
 [pandoc]: https://pandoc.org/
 [LaTeX]: https://latex-project.org/

test/Makefile

@@ -189,7 +189,8 @@ EXTRA_CMD = docker run --rm \
 	--fail-if-warnings
 
 .PHONY: test-extra
-test-extra: output/eisvogel.pdf output/eisvogel_with_environment.pdf output/beamertheme-metropolis.pdf
+test-extra: output/eisvogel.pdf output/eisvogel_with_environment.pdf \
+			output/beamertheme-metropolis.pdf output/lua.html
 
 output/eisvogel.pdf: eisvogel.md
 	$(EXTRA_CMD) $< \
@@ -211,6 +212,11 @@ output/beamertheme-metropolis.pdf: beamertheme-metropolis.md
 	    --variable=theme:metropolis \
 	    --variable=themeoptions:numbering=none
 
+output/lua.html: eisvogel.md
+	$(EXTRA_CMD) $< \
+	    --output=$@ \
+	    --lua-filter=pagebreak.lua
+
 #   ____ _
 #  / ___| | ___  __ _ _ __
 # | |   | |/ _ \/ _` | '_ \

ubuntu/Dockerfile

@@ -199,3 +199,10 @@ RUN mkdir -p ${TEMPLATES_DIR} && \
 ARG EISVOGEL_REPO=https://raw.githubusercontent.com/Wandmalfarbe/pandoc-latex-template
 ARG EISVOGEL_VERSION=v2.4.0
 RUN wget ${EISVOGEL_REPO}/${EISVOGEL_VERSION}/eisvogel.tex -O ${TEMPLATES_DIR}/eisvogel.latex
+
+# Lua Filters
+ARG LUA_FILTERS_REPO=https://github.com/pandoc/lua-filters/releases/download
+ARG LUA_FILTERS_VERSION=v2021-11-05
+RUN wget ${LUA_FILTERS_REPO}/${LUA_FILTERS_VERSION}/lua-filters.tar.gz \
+    && tar xzf lua-filters.tar.gz --strip-components=1 --one-top-level=/.pandoc \
+    && rm -f lua-filters.tar.gz